Tests

The back door is now available to you because you were able to defeat Sybil. They will lead you to a unique hub area that you can visit to listen to music, play with content you find in the game as well as take part in Tests. The Tests are rounds of various skill-based battles which will see how speedy, powerful, and agile you are, amongst other things.

You'll unlock the music player after completing the first speed test. Here are the other types of tests: